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| author | Andreas Kling <kling@serenityos.org> | 2020-01-30 21:48:41 +0100 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2020-01-30 21:51:27 +0100 |
| commit | 31a141bd101e0483553aabe1a91e6efc86d483cd (patch) | |
| tree | a8fa8fda00ce40aabe50d189ccc9478aac0d63aa /Kernel/VM | |
| parent | 31d1c82621ffd0d8ed9236859150f7de8914560b (diff) | |
| download | serenity-31a141bd101e0483553aabe1a91e6efc86d483cd.zip | |
Kernel: Range::contains() should reject ranges with 2^32 wrap-around
Diffstat (limited to 'Kernel/VM')
| -rw-r--r-- | Kernel/VM/RangeAllocator.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Kernel/VM/RangeAllocator.h b/Kernel/VM/RangeAllocator.h index bc6ce844a6..999282deff 100644 --- a/Kernel/VM/RangeAllocator.h +++ b/Kernel/VM/RangeAllocator.h @@ -57,6 +57,8 @@ public: bool contains(VirtualAddress base, size_t size) const { + if (base.offset(size) < base) + return false; return base >= m_base && base.offset(size) <= end(); } |